Enable or disable all dates in calendar

Hello,
I have many tours on my site that have only one date available for purchase. In these cases, I need to block all others. But to do this, I need to click on each day that will be locked in the calendar. Thinking that the year 2019 will start soon, I’m already seeing a huge job to create each tour.
To solve this problem, I would like to know if it is possible to create the option to check or uncheck all dates.
Another option is to create a way to limit the presentation of specific months, as it is already possible to do with the cars.
Thanks.